TOKYO (Kyodo) — The operator of a nuclear power plant in central Japan received whistleblower reports regarding alleged manipulation of quake-resistance data but did not conduct an investigation until nuclear regulators flagged the issue last year, a source close to the matter said Wednesday.
Chubu Electric has said that during the safety review process, its employees are suspected of having cherry-picked seismic ground-motion data when establishing quake-resistant standards for the Hamaoka plant, making them appear smaller than they should be.
The Hamaoka plant, the company's only nuclear complex, is located in an area estimated to be affected by a megaquake expected near the Nankai Trough off Japan's Pacific coast.
by SkyInJapan